Last year, Leanne Lauricella, founder of Goats of Anarchy, a goat rescue group, stumbled upon an unlikely solution to Polly's anxiety in the form of a child's duck costume from Marshall's.

Lauricella originally bought the costume for Halloween - she thought she'd put it on Polly and take a few cute photos for Facebook. But once Polly was wearing the duck costume, something miraculous happened - Polly stopped crying, got very still and eventually fell asleep.

After this discovery, Lauricella started putting Polly into the duck costume whenever she had an anxiety attack. Each and every time, Polly calmed right down. And soon the internet fell in love with Polly's story.

Now Polly has gotten bigger - too big to fit in the size 12 duck costume Lauricella had bought for her. Lauricella thought about looking for another duck costume the following Halloween, but a different solution recently presented itself.

A little boy named Harrison had heard about Polly and her anxiety issues, and he wanted to help. Coincidentally, he also wore the same duck costume this past Halloween.

"[Harrison's mother] reached out to find out which size Polly was wearing," Lauricella told The Dodo. "So I told her, and she said, 'That's perfect - my son has the next size up, and would love Polly to have it."

"Then she wrote to me, and said, 'We sent the package to you today,'" Lauricella said. "Her son gave the costume one last hug at the post office, and they wrapped it up together and said goodbye. It was really sweet that a little boy that young wanted to donate his costume. He just loved that he was helping Polly."

The new costume fits Polly perfectly and, according to Lauricella, it has the same magical effect on her. "I put it on her today and she just fell asleep - instantly," she said.

In fact, Lauricella believes that Pippa's friendship has helped Polly's anxiety issues go away. "I feel like she has been a nurturer to Pippa, like a mother," Lauricella said. "Pippa just nuzzles her and cuddles her."